Astronomers discover 83 supermassive black holes 13 billion light-years away

Agencies
March 15, 2019

Washington, Mar 15: Astronomers have discovered 83 quasars powered by supermassive black holes 13 billion light-years away from the Earth, from a time when the universe was less than 10 per cent of its present age.

“It is remarkable that such massive dense objects were able to form so soon after the Big Bang,” said Michael Strauss, a professor at Princeton University in the US.

“Understanding how black holes can form in the early universe, and just how common they are, is a challenge for our cosmological models,” Strauss said in a statement.

This finding, published in The Astrophysical Journal, increases the number of black holes known at that epoch  considerably, and reveals, for the first time, how common they are early in the universe’s history.

In addition, it provides new insight into the effect of black holes on the physical state of gas in the early universe in its first billion years.

Supermassive black holes, found at the centers of galaxies, can be millions or even billions of times more massive than the Sun.

While they are prevalent today, it is unclear when they first formed, and how many existed in the distant early universe.

A supermassive black hole becomes visible when gas accretes onto it, causing it to shine as a “quasar.” Previous studies have been sensitive only to the very rare, most luminous quasars, and thus the most massive black holes.

The new discoveries probe the population of fainter quasars, powered by black holes with masses comparable to most black holes seen in the present-day universe.

The team used data taken with “Hyper Suprime-Cam” (HSC) instrument, mounted on the Subaru Telescope of the National Astronomical Observatory of Japan, which is located on the summit of Maunakea in Hawaii.

The researchers selected distant quasar candidates from the sensitive HSC survey data.

They then carried out an intensive observational campaign to obtain spectra of those candidates, using three telescopes: the Subaru Telescope; the Gran Telescopio Canarias on the island of La Palma in the Canaries, Spain; and the Gemini South Telescope in Chile.

The survey revealed 83 previously unknown very distant quasars.

Comments

ABDUL AZIZ SHE…
 - 
Saturday, 16 Mar 2019

SUBHAANALLAH

 

 
ALLAH ALMIGHTY CREATED EVERTHING  INCLUDING WHOLE UNIVERSE AND WHAT IS IN IT,

HUMAN BEING CANNOT REACH TO UNDERSTAND IT,  HUMAN LIFE NOT SUFFEICENT TO REACH AND KNOW EVERYTHING.

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
February 14,2020

New Delhi/Washington, Feb 14: India has offered to partially open up its poultry and dairy markets in a bid for a limited trade deal during US President Donald Trump's first official visit to the country this month, people familiar with the protracted talks say.

India, the world's largest milk-producing nation, has traditionally restricted dairy imports to protect the livelihoods of 80 million rural households involved in the industry.

But Prime Minister Narendra Modi is trying to pull all the stops for the US President's February 24-25 visit, aimed at rebuilding bonds between the world's largest democracies.

In 2019, President Trump suspended India's special trade designation that dated back to 1970s, after PM Modi put price caps on medical devices, such as cardiac stents and knee implants, and introduced new data localization requirements and e-commerce restrictions.

President Trump's trip to India has raised hopes that he would restore some of the country's US trade preferences, in exchange for tariff reductions and other concessions.

The United States is India's second-largest trade partner after China, and bilateral goods and services trade climbed to a record $142.6 billion in 2018. The United States had a $23.2 billion goods trade deficit in 2019 with India, its 9th largest trading partner in goods.

India has offered to allow imports of US chicken legs, turkey and produce such as blueberries and cherries, government sources said, and has offered to cut tariffs on chicken legs from 100 per cent to 25 per cent. US negotiators want that tariff cut to 10 per cent. The Modi government is also offering to allow some access to India's dairy market, but with a 5 per cent tariff and quotas, the sources said. But dairy imports would need a certificate they are not derived from animals that have consumed feeds that include internal organs, blood meal or tissues of ruminants.

New Delhi has also offered to lower its 50 per cent tariffs on very large motorcycles made by Harley-Davidson, a tax that was a particular irritant for President Trump, who has labelled India the "tariff king." The change would be largely symbolic because few such motorcycles are sold in India.

President Trump will be feted in PM Modi's home state of Gujarat, then hold talks in New Delhi and attend a reception that the hosts have promised will be bigger than the one organised for former president Barack Obama in 2015.

But it is far from clear whether India's offers will be enough to satisfy US Trade Representative Robert Lighthizer, who cancelled plans for a trip to India this week. Instead, he has held telephone talks with Commerce Minister Piyush Goyal.

The US dairy industry remained sceptical on Thursday that a viable deal is at hand.

"We're always looking for market access, but in terms of India, as of today I'm not aware of any real progress going on," said Michael Dykes, president of the International Dairy Foods Association and a member of USTR's agricultural trade policy advisory committee.

Mr Dykes said the US dairy industry was looking for access in viable commercial quantities.

A USTR spokesman and India's trade ministry did not respond to requests for comment.

A parliament panel is reviewing a draft data privacy law that imposes stringent controls over cross-border data flows and gives the government powers to seek user data from companies.

It is not clear whether it will be passed, or in what form, but the possibilities have unnerved US companies and could raise compliance requirements for Google, Amazon.com Inc, and Facebook.

The draft law is not part of the trade discussions, Indian officials say, because the issue is too difficult to resolve at the same time.

"The privacy and localization piece will be raised independently and in concert with the trade discussions," said a Washington-based source with knowledge of the US administration's thinking.

President Trump on Tuesday was non-committal about sealing a trade deal before his visit. "If we can make the right deal, we'll do it," he told reporters.

Two US sources said progress had been made on proposed alterations to the medical device price caps. India's new import tariffs on medical devices, walnuts, toys, electronics and other products on February 1 surprised US negotiators, however.

The new tariffs were aimed at China, which also makes medical devices, according to an Indian government source. "We have to protect our market and our companies," the source said.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
May 7,2020

Visakhapatnam, May 7: Andhra Pradesh Chief Minister Y S Jagan Mohan Reddy on Thursday announced an ex- gratia payment of Rs one crore each to the kin of those killed in the styrene gas leak incident at LG Polymers Limited near here.

The NDRF had put the death toll from the leak at 11.

The chief minister announced a committee to probe into the mishap and also said the government would talk to the LG Polymers management seeking job for the kin of the deceased in any of its businesses.

Speaking to reporters after conducting a review meeting, Reddy also announced Rs 10 lakh each to those undergoing treatment on ventilator support and Rs 25,000 to those who took treatment as out-patients after developing health complications due to inhalation of the styrene vapour.

Earlier, he held a review meeting at the Andhra Medical College with District Collector Vinay Chand and others.

The gas leak victims undergoing treatment in various hospitals would be paid Rs one lakh each. The 15,000-odd population in the five villages that were affected by the gas leak would be paid Rs 10,000 each, the chief minister added.

Reddy further announced constitution of a high-level committee, headed by the Special Chief Secretary (Environment and Forests), to probe into the mishap and make recommendations to prevent such tragedies in the future.

Earlier, he visited the King George Hospital and consoled the victims of the gas leak.

Accompanied by his Deputy holding the health portfolio A K K Srinivas and Chief Secretary Nilam Sawhney, Reddy flew down to the port city and went straight to the KGH.

He met the gas leak victims undergoing treatment and enquired about their well-being.

At the review meeting, the Collector informed the Chief Minister that the gas spread was limited to a 1.5 to 2 km area from the epicentre of the leak and that the locals were evacuated to safety.

Of the two styrene tanks in the plant, the leak occurred from one that was holding about 1,800 kilo litres of the chemical.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
Agencies
June 2,2020

Singapore, Jun 2: Moody's Investors Service on Tuesday downgraded 11 Indian banks along with as many non-financial companies and infrastructure majors besides four government-related issuers following a downgrade of the Indian government's issuer rating to Baa3 from Baa2 with a negative outlook.

The rapid and widening spread of the coronavirus outbreak, deteriorating global economic outlook, volatile oil prices and asset price declines are creating a severe and extensive credit shock across many sectors, regions and markets, said Moody's.

The Indian banking sector has been affected given the disruptions to India's economic activity from the coronavirus outbreak, which is weakening borrowers' credit profiles, it added.

The 11 lenders include Bank of Baroda, Bank of India, Canara Bank, Central Bank of India, Export-Import Bank of India, HDFC Bank, Indian Overseas Bank, IndusInd Bank, Punjab National Bank, State Bank of India and Union Bank of India.

The 11 non-finance companies are Oil and Natural Gas Corporation, Hindustan Petroleum Corporation, Oil India, Indian Oil Corporation, Bharat Petroleum Corporation, Petronet LNG, Tata Consultancy Services, Infosys, Reliance Industries, UPL Corporation and Genpact.

The 11 infrastructure companies are NTPC, NHPC, National Highways Authority of India, Power Grid Corporation, Gail India, Adani Green Energy Restricted Group (RG-2), Adani Transmission Restricted Group, Adani Ports and Special Economic Zone, Adani Transmission, Adani Electricity Mumbai and Azure Power Solar Energy.

The four Indian government-related issuers are Indian Railway Finance Corporation, Housing and Urban Development Corporation, Power Finance Corporation and REC Ltd.

"Government-related issuers in India have been affected because of disruptions to India's economy which will weaken borrowers' credit profiles," said Moody's.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.